Abstract
In this letter, Au-Cu(x)OS yolk-shell nanostructures with porous shell are prepared through a facile ion exchange route from Au@Cu(2)O core-shell nanostructures. The as-prepared yolk-shell nanostructures exhibit ultrasensitive enzyme-free detection of H(2)O(2) molecules with higher sensitivity (50.41 μA μM(-1)) and lower detection limit (0.01 μM) as well with excellent anti-interference capacity in comparison with both hollow Cu(x)OS nanospheres and Au nanoparticles. Therefore, the obtained Au-Cu(x)OS yolk-shell nanostructures have potential application in ultralow concentration enzyme-free H(2)O(2) detection for biomedicine diagnosis.
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